OP
UTC

Enthusiast
GTS 300 Super '16, (GTS 125 Super written off in Jan 2022 - a 'SMIDSY' incident). Previously a GT125L and an ET4
Joined: UTC
Posts: 97
Location: Cheltenham, UK
 
Enthusiast
GTS 300 Super '16, (GTS 125 Super written off in Jan 2022 - a 'SMIDSY' incident). Previously a GT125L and an ET4
Joined: UTC
Posts: 97
Location: Cheltenham, UK
UTC quote
Next week, I'm getting a GTS 300 Super (2016) after being t-boned by a car earlier this month.
I had a lovely top box on my now written-off GTS 125 Super but I don't know if it was 36 or 42 liter!
Any thoughts on which size is best suited to the GTS, which is standard / recommended/ default choice or which one simply looks better?
Thanks
@brolsk2 avatar
UTC

Hooked
just a NPS50 (for the moment - lol)
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Location: Mount Prospect, IL
 
Hooked
@brolsk2 avatar
just a NPS50 (for the moment - lol)
Joined: UTC
Posts: 175
Location: Mount Prospect, IL
UTC quote
I am in the same mode right now for my 2017 GTS - that being said what is your budget? From looking at storage options it comes down to cost.

I will be test fitting motorcycle side bags (image below).

Top boxes can get quite expensive unless you get creative.
Forum member supplied image with no explanatory text
@jimc avatar
UTC

Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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Location: Pleasant Hill, CA
 
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@jimc avatar
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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Posts: 43641
Location: Pleasant Hill, CA
UTC quote
42l is the right one.
@cheshire avatar
UTC

Molto Verboso
GTS (sold)
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Posts: 1148
Location: US overlander, NC-plated
 
Molto Verboso
@cheshire avatar
GTS (sold)
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Posts: 1148
Location: US overlander, NC-plated
UTC quote
I love my GIVI e450 (45L) top case. There's even a light kit that ties into the brake and turn signals. I've had the same one for 5 or 6 years...3 or 4 on the GTS and 2 so far on the Triumph.
Small enough to not look awkward or affect handling (with bar end weight upgrade); big enough to hold a full bag of groceries, a couple of soda 12-packs, or whatever else I've thrown at it.
@dooglas avatar
UTC

Veni, Vidi, Posti
GTS 300ABS, Buddy 125, Buddy Kick 125
Joined: UTC
Posts: 13370
Location: Oregon City, OR
 
Veni, Vidi, Posti
@dooglas avatar
GTS 300ABS, Buddy 125, Buddy Kick 125
Joined: UTC
Posts: 13370
Location: Oregon City, OR
UTC quote
I suppose part of the answer depends on how much space you really need in a topcase. I would guess that most of us have the OEM 36 lt topcase. It is a likely choice as it is readily available in matching colors and matching backpad. I have found the 36 lt. case adequate for my needs, and it is probably not a good idea to overload the weight on the rear rack.
OP
UTC

Enthusiast
GTS 300 Super '16, (GTS 125 Super written off in Jan 2022 - a 'SMIDSY' incident). Previously a GT125L and an ET4
Joined: UTC
Posts: 97
Location: Cheltenham, UK
 
Enthusiast
GTS 300 Super '16, (GTS 125 Super written off in Jan 2022 - a 'SMIDSY' incident). Previously a GT125L and an ET4
Joined: UTC
Posts: 97
Location: Cheltenham, UK
UTC quote
Dooglas wrote:
I suppose part of the answer depends on how much space you really need in a topcase. I would guess that most of us have the OEM 36 lt topcase. It is a likely choice as it is readily available in matching colors and matching backpad. I have found the 36 lt. case adequate for my needs, and it is probably not a good idea to overload the weight on the rear rack.
Thanks Dooglas & JIMC, so is OEM is 36L? Do you know if they are visually much different eg does the 36Litre one look in better proportion than the 42L or is it highly subjective / either of them look good? I'm more concerned with the look of the case on the scooter than its ultimate carrying capability.
I assume they are both the exact same shape?
Would anyone be able to say if this (from my GTS125, now written off) is 36 or 42L?
Forum member supplied image with no explanatory text
@dooglas avatar
UTC

Veni, Vidi, Posti
GTS 300ABS, Buddy 125, Buddy Kick 125
Joined: UTC
Posts: 13370
Location: Oregon City, OR
 
Veni, Vidi, Posti
@dooglas avatar
GTS 300ABS, Buddy 125, Buddy Kick 125
Joined: UTC
Posts: 13370
Location: Oregon City, OR
UTC quote
hcurran wrote:
Would anyone be able to say if this (from my GTS125, now written off) is 36 or 42L?
It looks like the 36 LT box to me.
@spirovision avatar
UTC

Hooked
GTS super 300
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Location: Montreal Canada
 
Hooked
@spirovision avatar
GTS super 300
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Posts: 336
Location: Montreal Canada
UTC quote
brolsk2 wrote:
I am in the same mode right now for my 2017 GTS - that being said what is your budget? From looking at storage options it comes down to cost.

I will be test fitting motorcycle side bags (image below).

Top boxes can get quite expensive unless you get creative.
Curious as to how you are going to mount the side cases !!!
@brolsk2 avatar
UTC

Hooked
just a NPS50 (for the moment - lol)
Joined: UTC
Posts: 175
Location: Mount Prospect, IL
 
Hooked
@brolsk2 avatar
just a NPS50 (for the moment - lol)
Joined: UTC
Posts: 175
Location: Mount Prospect, IL
UTC quote
test run with actual dimensions/proportions:
green dot - body mount points
purple dot - upper frame and lower frame meet point not attached to body of scoot
red dash - frame to main support under seat (existing grab bar hole)
blue dash - frame to body mount side panel mounting hole (tbd)

my scoot is red so black bags might look ok I think

when it gets warm outside time to bust out the welder...
Spirovision wrote:
Curious as to how you are going to mount the side cases !!!
Forum member supplied image with no explanatory text
@jimc avatar
UTC

Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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Posts: 43641
Location: Pleasant Hill, CA
 
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@jimc avatar
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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Posts: 43641
Location: Pleasant Hill, CA
UTC quote
hcurran wrote:
Would anyone be able to say if this (from my GTS125, now written off) is 36 or 42L?
That could easily be a 42l case - looks just like ours (both 42l). BUT if the 36 is a very similar shape, I could very well be wrong.
@greasy125 avatar
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Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
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Location: The state of insanity, SoCal
 
Sergeant at Arms
@greasy125 avatar
Weird 80's Vespas & Cool Vintage Lambrettas
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Posts: 14893
Location: The state of insanity, SoCal
UTC quote
brolsk2 wrote:
test run with actual dimensions/proportions:
green dot - body mount points
purple dot - upper frame and lower frame meet point not attached to body of scoot
red dash - frame to main support under seat (existing grab bar hole)
blue dash - frame to body mount side panel mounting hole (tbd)

my scoot is red so black bags might look ok I think

when it gets warm outside time to bust out the welder...
on that lower mount, you might be able to get into the body underneath the fairing (depending on spacing-- for what's behind it, and size of fastener) the result would be super clean if you had them off and not gaping holes in the body. I did a similar set on an ET years and years ago and it worked out a treat.
@brolsk2 avatar
UTC

Hooked
just a NPS50 (for the moment - lol)
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Location: Mount Prospect, IL
 
Hooked
@brolsk2 avatar
just a NPS50 (for the moment - lol)
Joined: UTC
Posts: 175
Location: Mount Prospect, IL
UTC quote
looking into this as we speak - will need to mock it up in IRL but so far I like the balance I'm gettin...higher mount is easier but lower has a bagger look to it...tbc (wait till I mock up what I got for the front LOL)
greasy125 wrote:
on that lower mount, you might be able to get into the body underneath the fairing (depending on spacing-- for what's behind it, and size of fastener) the result would be super clean if you had them off and not gaping holes in the body. I did a similar set on an ET years and years ago and it worked out a treat.
Forum member supplied image with no explanatory text
UTC

Molto Verboso
2023 Genuine Buddy 125
Joined: UTC
Posts: 1152
Location: Norfolk, VA
 
Molto Verboso
2023 Genuine Buddy 125
Joined: UTC
Posts: 1152
Location: Norfolk, VA
UTC quote
I love top boxes but try and stay under 40 liters. No real reason why but I think it has something to do with looking weird past 40 liters. But I would let a nice, color matched 42 liter slip by. Keyed alike would be a bonus!
@dooglas avatar
UTC

Veni, Vidi, Posti
GTS 300ABS, Buddy 125, Buddy Kick 125
Joined: UTC
Posts: 13370
Location: Oregon City, OR
 
Veni, Vidi, Posti
@dooglas avatar
GTS 300ABS, Buddy 125, Buddy Kick 125
Joined: UTC
Posts: 13370
Location: Oregon City, OR
UTC quote
jimc wrote:
That could easily be a 42l case - looks just like ours (both 42l). BUT if the 36 is a very similar shape, I could very well be wrong.
Actually the 36 and 42 liter Vespa topcases do look very similar. There is a small difference in the slope of the back portion of the lid, but it isn't striking. Perhaps more to the point, look at ScooterWest (Motosport) or SIP online. You will find a large selection of 36 liter cases in most colors and very few 42 liter cases
UTC

Hooked
2020 Piaggio Liberty S 150, 2016 Vespa GTV300ie, 2009 Yamaha C3
Joined: UTC
Posts: 161
Location: USA
 
Hooked
2020 Piaggio Liberty S 150, 2016 Vespa GTV300ie, 2009 Yamaha C3
Joined: UTC
Posts: 161
Location: USA
UTC quote
I have a GIVI 47L monolock topcase on my Liberty s150. Off the scoot, to my eye the case looks enormous, but installed, it seems A-OK. Plus, since the Liberty is my go-to scoot for rides to work, the grocery store, etc., I really appreciate the extra space.

My Vespa GTV, however, absolutely MUST look all matchy-matchy with the OEM topcase and seat-matched backrest. Nothing else will do. Laughing emoticon
UTC

Enthusiast
2018 Liberty 150
Joined: UTC
Posts: 52
Location: Northern California
 
Enthusiast
2018 Liberty 150
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Posts: 52
Location: Northern California
UTC quote
cnvh wrote:
I have a GIVI 47L monolock topcase on my Liberty s150. Off the scoot, to my eye the case looks enormous, but installed, it seems A-OK. Plus, since the Liberty is my go-to scoot for rides to work, the grocery store, etc., I really appreciate the extra space.
CNVH Can you share pics of how it looks? I have the 30 L on mine but sometimes wonder about going bigger. Also is it ever annoying having something inside slide around or spill because the case is too big?
UTC

Hooked
2020 Piaggio Liberty S 150, 2016 Vespa GTV300ie, 2009 Yamaha C3
Joined: UTC
Posts: 161
Location: USA
 
Hooked
2020 Piaggio Liberty S 150, 2016 Vespa GTV300ie, 2009 Yamaha C3
Joined: UTC
Posts: 161
Location: USA
UTC quote
dishrag wrote:
CNVH Can you share pics of how it looks? I have the 30 L on mine but sometimes wonder about going bigger. Also is it ever annoying having something inside slide around or spill because the case is too big?
Forum member supplied image with no explanatory text
Forum member supplied image with no explanatory text
OP
UTC

Enthusiast
GTS 300 Super '16, (GTS 125 Super written off in Jan 2022 - a 'SMIDSY' incident). Previously a GT125L and an ET4
Joined: UTC
Posts: 97
Location: Cheltenham, UK
 
Enthusiast
GTS 300 Super '16, (GTS 125 Super written off in Jan 2022 - a 'SMIDSY' incident). Previously a GT125L and an ET4
Joined: UTC
Posts: 97
Location: Cheltenham, UK
UTC quote
I settled for the 36L in the end - and I think it looks most in proportion on the GTS.

To potentially help others, I finally deduced that it is easy to tell the difference simply by looking at the backrest which is quite neat on the 36L and much wider and bigger-looking on the 42L (I think). I haven't got pics to prove the 42L backrest is bigger, but if anyone has one, it might be useful to reply with it

Thanks All
Forum member supplied image with no explanatory text
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